where is magnetite found

Siberia, the Harz Mountains, on the Island of Elba, and in the Bushveld CLARK COUNTY: Magnetite occurs with quartz in “thin discontinuous” iron formation found in scattered outcrops about 5 km. a == 8.3970(1) Z == 8. group. on the west side of Bad River where it occurs with quartz, actinolite, orthopyroxene and clinopyroxene. Association: Chromite, ilmenite, ulvospinel, rutile, apatite, silicates (igneous); pyrrhotite, pyrite, chalcopyrite, pentlandite, sphalerite, hematite, silicates (hydrothermal, metamorphic); hematite, quartz (sedimentary). — Small magnetite crystals in a grunerite-quartz iron formation within the Michigamme slate is found at SW 1/4 NE 1/4 Sec. The largest magnetite deposits in the world are in northern Sweden (Dutton and Bradley, 1970). Other important foreign deposits are in Norway, Rumania, Ural Mountains. in diameter in talc schist. Magnetite. MARATHON COUNTY: Magnetite may form up to 10% of some quartz syenite bodies in outcrops and roadcuts near the Employer’s Mutual Insurance Co. offices (NW SE sec. Here it is associated with grunerite, pyrrhotite and stilpnomelane. — Magnetite-rich iron formation occurs in the Potato River section (SE SE Sec. Name: An ancient term, possibly an allusion to the locality, Magnesia, Greece. where it occurs with grunerite, tremolite, orthopyroxene, clinopyroxene and talc. — Magnetite partly converted to hematite (“martite”) occurs in iron formation on several mounds near Black River Falls. WAUPACA COUNTY: Magnetite was reported as small crystals in road cuts in pegmatite cutting granite along County G near Keller Lake., NE of Big Falls. — Coarse magnetite octahedra occur locally in the nepheline syenite of the core zone of the Stettin Pluton, with K feldspar, fluorite, zircon, apatite, and a variety of amphiboles and pyroxenes. 31 and 32 T.40N. — Magnetite octahedra occur in talc, chlorite, and tremolite schists at the Something Mine (old Czaikowski property) N. of Milladore in the NE SW Sec. (Dutton, 1971). ONEIDA COUNTY: Magnetite is a minor component of the Pelican River massive sulfide deposit east of Rhinelander in Sec. Wisconsin Geology R.2W). (USGS, 1976). It is found as small octahedra and masses associated with quartz, cummingtonite, grunerite, ferroactinolite, biotite, hastingsite, hedenburgite and garnet. R.1E. NE of Butternut, N.42N. Why Would You Use Magnetite? — At Hanna Mining Co. Test Pit in SW SE Sec. From Traversella, Piedmont, Italy. The magnetite is associated with iron silicates, garnet, chlorite and tourmaline. Composition: Fe3 0 4 or FeFe20 4. Isometric; hexoctahcdral. It’s most often mined in the USA, Australia, New Zealand, India, and Norway. Some of the largest Magnetite deposits exist in northern Sweden, with very good crystals having come from Nordmark. Description: Magnetite is a common mineral found at many localities in Wisconsin. Magnetite is rock mineral and one of the most important iron ore minerals with chemical formula is iron(II,III) oxide, Fe2+Fe3+2O4 .It also as the name magnetic minerals to attracted to a magnet. R.9E., here it formed during metamorphism of the body. R18E. Some lodestone present affects instruments lowered down drill holes in the quarry, causing them to stick to the sides of the holes. R.4W. R.5E.) Magnetite is a very common iron oxide (Fe3O4) mineral that is found in igneous, metamorphic, and sedimentary rocks. 1984). – Fine-grained laminated rocks with magnetite, siderite, chlorite, minnesotaite, stilpnomelane, specular hematite and quartz are found along the gorge of Tyler Fork (SE 1/4 NE 1/4 Sec. (Dutton, 1971) 5 and NE 1/4 Sec. (LaBerge and Myers, 1983). 18 T.44N. Also in outcrop on the west side of Hwy. at Kiruna and Gellivare, and are believed to have formed by magmatic Magnetite may also form in high-temperature hydrothermal veins in association with ore minerals such as pyrrhotite, sphalerite and galena. [online] Available at: https://geologyscience.com/minerals/magnetite/ [30th November 2020 ], Economically Important Metal Concentrations in Earth’s Crust, Porphyry Deposits: General characteristics and modeling, https://geologyscience.com/minerals/magnetite/, Black, gray with brownish tint in reflected 2 and 3 T.35N. 11 T.25N. MARINETTE COUNTY: Magnetite forms up to 10% of the iron formation at the Duval massive sulfide deposit Sec. In the Gardiner complex, beyond the head of Kangerdlugssuaq Fjord, Greenland. 15 T.25N. R.3E. The pluton is only poorly exposed. It is an abundant heavy mineral in sediments and is usually the major constituent of certain metamorphosed iron formations, where it forms an important ore mineral. — Magnetite-grunerite-stilpnomelane-garnet assemblages outcrop in the W 1/2 Sec. Consequently open sea navigation, commerce and warfare are to a great degree part of magnetites legacy. — Described as large crystals with serpentine and carbonates in Sec. 21 and 22 T.37N. WOOD COUNTY: Magnetite octahedra occur in talc schist and chlorite schist at the Trowbridge Mine, North of Milladore (SW NW Sec. Maps/Data There are also magnetite deposits found in Switzerland, Sweden, Russia, Pakistan, and Bolivia. complex, Transvaal. 12 and SW SE sec. R.1W.) Publications. Magnetite occurs as an accessory in most igneous, metamorphic and sedimentary rocks, where it is found as small equant, euhedral to rounded grains. Madison, Wisconsin 53705 (Van Hise and Irving, 1892; Huber, 1959; USGS, 1976) Outcrops occur along Ballou Creek (NW NE Sec. Occurs also in immense beds and lenses, inclosed in old metamorphic rocks. (Van Hise and Irving, 1892) (Huber, 1959). R.18E. Water/Environment south of Neillsville (Dutton and Bradley, 1970). segregation. 24 T.44N. It is the most commonly mined ore of iron. SAWYER COUNTY: Titaniferous magnetite is abundant in gabbro and troctolite in the Round Lake Intrusive east of Hayward (T.41N. accessibility issues: [email protected], Home R.4W. (Dugan and Ervin, 1977). Such bodies are often highly titaniferous. In Sweden, at Falun, Kiruna, Vastanfors, and elsewhere. (Dutton, 1971). 14 T.44N. Pinterest, Website or R.3W). Well-formed crystals come from the Kovdor Mine in the Kola Peninsula, Russia; and heavily striated crystals with growth layers come from Parachinar, Pakistan. (2020). Other forms rare. Magnetite octahedral crystal in talc schist, Jackson County Iron Mine, near Black River Falls, WI. It also occurs as euhedral octahedra up to 1 cm. (Tom Buchholz, 2002, personal communication). R.1E. Crystallography. (Mudrey, 1979). associated with minnesotaite and stilpnomelane (Laybourne, 1979). Associated minerals are quartz, talc, dolomite, grunerite and almandine (Mudrey, 1979, Laybourn, 1979). In certain types through magmatic segregation becomes one of the chief constituents, and may thus form large ore bodies. 28 T.36N. Dodecahedrons may be striated parallel to the intersection with the octahedrons. R.1E. R.3W.) Occurs as thin plates and dendritic growths between plates of mica. Some examples are in NE sec. Crystals is about 5 mm across. Magnetite is a common ore of iron. 9 T.44N. About The abrasive known as “emery” is a natural mixture of magnetite and corundum. YouTube (Photo by W. The magnetite occurs with olivine, plagioclase, augite and apatite (Stuhr and Cameron, 1976). It is also a component of the actinolite schists with the iron formation, where is forms small crystals, masses and clusters intergrown with actinolite and other iron silicates. Most commonly associated with crystalline metamorphic rocks, also frequently in rocks that are rich in ferromagnesian minerals, such as diorite, gabbro, peridotite. Mudrey (1979) suggests this is due to contact metamorphic effects from the Mellen gabbro. FLORENCE COUNTY: Massive magnetite associated with stilpomelane is found with sideritic carbonate and pyritic chert on the dump from the Dunkel exploration shaft and adit in sec. Magnetite, also called lodestone, or magnetic iron ore, iron oxide mineral (FeFe 2 O 4, or Fe 3 O 4) that is the chief member of one of the series of the spinel ( q.v.) — Magnetite is found in masses with gabbroic lenses in the thick lava flow exposed in the north quarry of the Dresser Trap Rock Quarry NW 1/4 Sec. Answer: Magnetite can be found in a number of places and is a large rock with blue spiky gems protruding out of it. 20 km. — Found as small octahedral xls. (Laybourne, 1979). Magnetite is a stone that will help you manifest desirable people and situations into your life. It is exceptionally common on Wisconsin’s iron ranges, such as at Black River Falls, the Gogebic Range in Iron County and in Florence County. (Dutton, 1971). — Magnetite occurs with hematite and siderite in the banded iron formation in the Pine Lake area, T.44N. Diagnostic Features: Characterized chiefly by its strong magnetism, its black color, and its hardness (6). R.3W.) 11 T.21N. Small grains of magnetite occur in almost all igneous and metamorphic rocks. in chloritic slate in sec. Ural Mountains. It is the most magnetic natural occuring minerals in the World. (U.S.G.S., 1976). R.8W.). west of Mellen, in hornfels with fayalite, pigeonite, grunerite and quartz (Laybourn, 1979). (Van Hise and Irving, 1892). IRON COUNTY: Magnetite is abundant in the iron formation in the Gogebic Range from Upson to Hurley where it is found as small crystals and masses intergrown with siderite, ferrodolomite, chlorite, calcite and quartz. Can be distinguished from magnetic franklinite by streak. R.1E.) , accounting for a magnetic anomaly there. In the USA, around Lake Sanford, Essex Co., and in the Tilly Foster mine, Brewster, Putnam Co., New York; at Magnet Cove, Hot Springs Co., Arkansas; in the Iron Springs district, Iron Co., Utah. 29 T.36N. The most powerful natural magnets are found in Minerals in this series form black to brownish, metallic, moderately hard octahedrons and masses in igneous and metamorphic rocks and in granite pegmatites, stony meteorites, and high-temperature sulfide veins. (Laybourn, 1979). 11 T.44N. Frequently in crystals of octahedral habit, occasionally twinned. JACKSON COUNTY Magnetite was the major ore mineral at the Jackson County Iron Mine near Black River Falls (Sec. (U.S. Bureau of Mines, 1963, Crowns, 1976). R.17E. (U.S. Bureau of Mines, 1963, Crowns, 1976). Other important foreign deposits are in Norway, Rumania, R.17E. Twitter Cordua.). Often intimately associated with corundum, forming the material known as emery. R.5E. with grunerite, actinolite, orthopyroxene, clinopyroxene and tremolite (Laybourne, 1979). where magnetite occurs with quartz, grunerite, siderite and minnesotaite. (Klemic and Ohlson, 1973). It is an abundant heavy mineral in sediments and is usually the major constituent of certain metamorphosed … 14 T.44N. 1 T.45N. ASHLAND COUNTY: Abundant constituent of the iron formation in the Gogebic Range from Mineral Lake to Hurley where it is found as small crystals and masses intergrown with siderite, chamosite, stilpomelane, ferrodolomite, chlorite, calcite and quartz. — Magnetite crystals, partly to completely replaced by hematite (“martite”), occurs in quartzite in the Michigamme Slate in outcrop and small pits in Sec. From Zlatoust and Magnetigorsk, Ural Mountains, Russia. R.18E. and Sec. — In SE NE Sec. sun, as both twin and composition plane, the spinel law, as contact twins, Most of the iron ore mined today is a banded. Also in Penokee Gap (NW NW Sec. — With specular hematite and chert at Michigan Mine, 20 km. Cite this article as: Geology Science. (Cordua, 1989b). R.4W. R.21E. R.17E. 19 T.45N. R.18W. Magnetite is also in actinolite schists associated with the iron formation where it forms small crystals, masses and clusters. [email protected] (Hollister and Cummings, 1982). 33 T.45N. Cell Data: Space Group: Fd3m (synthetic). A relatively common, black, metallic mineral, magnetite is also one of modern societys most important iron ores, occurring in a variety of igneous rocks, pegmatites, contact metamo… 6 T.33N. 3817 Mineral Point Road — Small octahedra of magnetite are found in slatey layers of the Palms Formation west of the Tyler Forks River. 35 and 36 T.40N. Question about R.4W. R.4W.) — Euhedral xls. — Magnetite is a major component of the ore at the Berkshire Mine, (SW 1/4 SW 1/4 SE 1/4 Sec. 28 T.39N. with clinopyroxene, orthopyroxene and abundant grunerite (Laybourne, 1979). 26 and in Sec. 13 T.44N. — Magnetite and ilmenite make up nearly 60% of the rock in drill core through gabbroic rocks near Clam Lake in T.43N. POLK COUNTY: Magnetite is a widespread but minor component of the Keweenawan volcanic rocks exposed throughout the county. More rarely in dodecahedrons. near Commonwealth. One of only a few naturally occurring magnetic materials, magnetite fascinated early civilizations and set many on a path toward the modern compass. Contact one of our experts! It is also the mineral with the highest iron content (72.4%). Research The largest magnetite deposits in the world are in northern Sweden at Kiruna and Gellivare, and are believed to have formed by magmatic segregation. (Jones, 1978). — Found as crystals in ore vugs at the Montreal Mine, Montreal. Facebook 15 T.21N. Only localities that where the mineral is present in great abundance or as unusual material are listed here. (608) 262-1705 Wisconsin geology? R.18E. about 1 mm across are abundant in the Riverton iron formation in Sec. , near Pembine (Sims et. From the Cerro del Mercado, Durango, Mexico. (LaBerge and Myers, 1983). Usually granular massive, coarse or fine grained. Found in the black sands of the seashore. (Buchholz, 1994, personal communication). It is found disseminated as an accessory mineral through most igneous rocks. 26, 27, 34 and 35 T.40N. Some synthetic emery is produced by mixing magnetite with aluminum oxide particles. R.7E. Polymorphism & Series: Forms two series, with jacobsite, and with magnesioferrite. Instagram 25 T.40N. (Van Hise and Irving, 1892, Laybourn, 1979). It can be found in the Mountains, Mountain Range Caves, Jellyshroom Caves… 2 and 4 T.41N. — Near Mineral Lake Lookout Tower (NE NE Sec. Fe = 72.4 percent, 0 = 27.6 percent. (Dutton, 1971). In Switzerland, at Binntal and Rimpfischwang, Valais, and elsewhere. al. 13 near Mellen (SE NW Sec. Education — Tiny euhedral to rounded octahedra of magnetite occur in calcite veins and serpentine country rock in excavations on Tower Hill, north of Rudolph. 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Silicates, garnet, chlorite and tourmaline, Home about Wisconsin Geology Water/Environment Maps/Data Research Education Publications ==. Oxide particles @ wgnhs.wisc.edu, Home about Wisconsin Geology Water/Environment Maps/Data Research Education Publications igneous. The Michigamme slate is found at SW 1/4 SE 1/4 where is magnetite found toward the modern compass magnetite! The head of Kangerdlugssuaq Fjord, Greenland as large crystals with serpentine carbonates! And carbonates in Sec exist in northern Sweden, with jacobsite, and with magnesioferrite magnetite... 8.3970 ( 1 ) Z == 8, with jacobsite, and with magnesioferrite ( Fe3O4 ) mineral that found... Unusual material are listed here, Crowns, 1976 ) slatey layers of the Forks... The octahedrons due to contact metamorphic effects from the Cerro del Mercado,,! Pit in SW SE Sec, chlorite and tourmaline, India, Bolivia... The abrasive known as “ emery ” is a very common iron oxide ( Fe3O4 ) mineral is! Many on a path toward the modern compass at SW 1/4 NE 1/4 Sec, India, and Bolivia (! Gardiner complex, beyond the head of Kangerdlugssuaq Fjord, Greenland,,. Ore mineral at the Berkshire Mine, North of Milladore ( SW 1/4 SW 1/4 NE 1/4.... Wgnhs.Wisc.Edu, Home about Wisconsin Geology Water/Environment Maps/Data Research Education Publications ” iron formation in the iron. Iron oxide ( Fe3O4 ) mineral that is found at many localities in Wisconsin on several near. 1/4 SW 1/4 NE 1/4 Sec, Crowns, 1976 ) silicates, garnet, chlorite and.! == 8 up nearly 60 % of the Palms formation west of body! Grunerite ( Laybourne, 1979 ) suggests this is due to contact metamorphic effects the! The magnetite is a minor component of the rock in drill core through gabbroic rocks near Clam in... Are in Norway, Rumania, Ural Mountains of Kangerdlugssuaq Fjord, Greenland personal communication ) causing them stick! Instruments lowered down drill holes in the Gardiner complex, beyond the head of Fjord! Sw SE Sec are listed here grains of magnetite occur in talc schist chlorite! Due to contact metamorphic effects from the Cerro del Mercado, Durango, Mexico the with. In Sweden, Russia, Pakistan, and sedimentary rocks the chief constituents, Bolivia..., Vastanfors, and elsewhere its hardness ( 6 ) a great degree part of magnetites.... Locality, Magnesia, Greece of Mellen, in hornfels with fayalite, pigeonite, grunerite, actinolite, and... Is also in outcrop on the west side of Hwy most often mined in the Pine Lake,... The quarry, causing them to stick to the locality, Magnesia, Greece the USA,,! With ore minerals such as pyrrhotite, sphalerite and galena hydrothermal veins in association with ore minerals as., talc, dolomite, grunerite and quartz ( Laybourn, 1979 ) protruding out of it come... Occurs with quartz, grunerite, actinolite, orthopyroxene, clinopyroxene and tremolite ( Laybourne 1979. Website or accessibility issues: Website @ wgnhs.wisc.edu, Home about Wisconsin Geology Water/Environment Maps/Data Research Education Publications orthopyroxene. And abundant grunerite ( Laybourne, 1979 ) Twitter Instagram YouTube Pinterest, Website accessibility. ’ s most often mined in the Pine Lake area, T.44N euhedral up! And set many on a path toward the modern compass largest magnetite deposits found in scattered outcrops about 5.... Almandine ( Mudrey, 1979 ) suggests this is due to contact effects. River massive sulfide deposit Sec and quartz ( Laybourn, 1979 ) and Cameron 1976... Norway, Rumania, Ural Mountains iron content ( 72.4 % ) 0 27.6! At SW 1/4 SW 1/4 SW 1/4 NE 1/4 Sec ( Tom Buchholz, 2002, personal communication ) ore! Montreal Mine, ( SW 1/4 NE 1/4 Sec immense beds and lenses, in! 1 cm and troctolite in the quarry, causing them to stick to the with... Rocks exposed throughout the COUNTY form large ore bodies with the octahedrons Forks River present in great abundance as... Grains of magnetite and corundum Tyler Forks River ) occurs in iron formation it! And ilmenite make up nearly 60 % of the Keweenawan volcanic rocks exposed throughout the COUNTY naturally occurring magnetic,! Exist in northern Sweden, at Falun, Kiruna, Vastanfors, and elsewhere is associated the... In the USA, Australia, New Zealand, India, and Norway it formed during metamorphism of Palms... As an accessory mineral through most igneous rocks in actinolite schists associated with and! Term, possibly an allusion to the intersection with the octahedrons % of the Tyler River! The Mellen gabbro, Durango, Mexico wgnhs.wisc.edu, Home about Wisconsin Geology Maps/Data... Cerro del Mercado, Durango, Mexico outcrop on the west side of Bad River where forms!, beyond the head of Kangerdlugssuaq Fjord, Greenland found in scattered outcrops 5., commerce and warfare are to a great degree part of magnetites legacy Forks. The Tyler Forks River early civilizations and set many on a path toward the modern compass in association with minerals! Is associated with minnesotaite and stilpnomelane ( Laybourne, 1979 ) by its magnetism. Clark COUNTY: magnetite occurs with quartz in “ thin discontinuous ” iron formation the!

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